Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface LongUnaryOperator

Since:

1.8

See Also:

UnaryOperator

• Method Summary

  All Methods Static Methods Instance Methods Abstract Methods Default Methods 

  Modifier and Type	Method	Description
  default LongUnaryOperator	andThen(LongUnaryOperator after)	Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result.
  long	applyAsLong(long operand)	Applies this operator to the given operand.
  default LongUnaryOperator	compose(LongUnaryOperator before)	Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result.
  static LongUnaryOperator	identity()	Returns a unary operator that always returns its input argument.

• Method Detail

  • applyAsLong

    long applyAsLong(long operand)

    Applies this operator to the given operand.

    Parameters:

    operand - the operand

    Returns:

    the operator result

  • compose

    default LongUnaryOperator compose(LongUnaryOperator before)

    Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

    Parameters:

    before - the operator to apply before this operator is applied

    Returns:

    a composed operator that first applies the before operator and then applies this operator

    Throws:

    NullPointerException - if before is null

    See Also:

    andThen(LongUnaryOperator)

  • andThen

    default LongUnaryOperator andThen(LongUnaryOperator after)

    Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

    Parameters:

    after - the operator to apply after this operator is applied

    Returns:

    a composed operator that first applies this operator and then applies the after operator

    Throws:

    NullPointerException - if after is null

    See Also:

    compose(LongUnaryOperator)

  • identity

    static LongUnaryOperator identity()

    Returns a unary operator that always returns its input argument.

    Returns:

    a unary operator that always returns its input argument